Ecofriendly management and screening of mungbean (Vigna radiata L.) genotypes against whitefly (Bemisia tabaci Gennadius)
| dc.contributor.advisor | Verma, Tarun | |
| dc.contributor.author | Khin Thanda Min | |
| dc.date.accessioned | 2019-12-12T08:59:31Z | |
| dc.date.available | 2019-12-12T08:59:31Z | |
| dc.date.issued | 2019 | |
| dc.description.abstract | Field studies on “Ecofriendly management and screening of mungbean, Vigna radiata L. genotypes against whitefly Bemisia tabaci Gennadius” was carried out during the Kharif, 2018. The minimum and maximum population of whitefly nymph observed in MH 318 and MH 1315 (2.20, 11.68 whitefly nymph /3 leaves/plant) respectively. The minimum and maximum populations of whitefly adults were observed on genotype MH 318 and MH 1413 (13.65, 32.98 whitefly/plant), respectively. The activity of whitefly nymphs and adults reached its peaks at 35DAS (32th SMW means 2nd week of August). Maximum grain yield was obtained in genotype MH 1467 (575.0 kg/ha) and lowest yield was observed in genotype Basanti (152.78 kg/ha). Correlation of whitefly with the maximum, minimum temperature and sunshine hours was positive and significant, while negative and non-significant with evening relative humidity in different genotypes screened. Biorational spray on variety MH 421 was done which indicated minimum whitefly adult population in Neem oil 2% (crude) (T4) in first spray. However, during second spray minimum whitefly adult (7.00 whitefly adults/plant) were recorded in T2 (NSKE 5% aqueous extract). Neem oil 2% (crude) (T4) was found most effective (12.38 whitefly adults/plant) treatment on the basis of overall mean of first and second spray. Maximum grain yield (259.26 kg/ha) was obtained in T1 (NSKE 5% Methanolic extract) which was at par with T2 NSKE 5% (Aqueous extract): (217.41kg/ha) andT4 Neem oil 2% (crude): (221.11 kg/ha). Correlation between whitefly and weather factors was exhibited significantly positive with maximum temperature (r=0.843), negative correlated with relative humidity (r =-743) and rainfall (r=-747). The populations of tobacco caterpillar were significantly positive correlated with the minimum temperature (r=0.810) and negatively correlated with the relative humidity(r=-0.275). Correlation between maximum temperature, minimum temperature with spotted pod borer was found positive (r= 0.445, 0.207), while it was negative with the relative humidity and rainfall (r= -0.336, -0.471) (r= - 0.269) respectively. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810137529 | |
| dc.keywords | Mungbean, Vigna radiata, Bemisia tabaci, Screening, Empoasca kerri, Maruca vitrata, ecofriendly management, population dynamics | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | CCSHAU | en_US |
| dc.sub | Entomology | en_US |
| dc.subject | null | en_US |
| dc.theme | Ecofriendly management and screening of mungbean (Vigna radiata L.) genotypes against whitefly (Bemisia tabaci Gennadius) | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | Ecofriendly management and screening of mungbean (Vigna radiata L.) genotypes against whitefly (Bemisia tabaci Gennadius) | en_US |
| dc.type | Thesis | en_US |